Microwave shows E19 and the interior light stays on even when the door is closed; unit may refuse to start.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Door switch stuck in open position, Misaligned door latch, Broken latch hook, Shorted door switch wiring

Safety first: Unplug the microwave.

Observe light behavior: Open and close the door slowly. If the light never turns off, the door closed signal is not being detected.
Inspect latch hooks: Check the plastic hooks on the door for cracks or wear. Replace the door latch assembly if damaged.
Test door switches: Access the door switch cluster and test each switch with a multimeter. Replace any that do not change state correctly.
Check wiring: Ensure no wires are shorted together or to the chassis in the door switch area.

Medium 3/5

Door Latch Assembly

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